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Aux 12v battery

Discussion in 'Model 3: Battery & Charging' started by alseTrick, Aug 6, 2017.

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  1. alseTrick

    alseTrick Active Member

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    That's different than door handles though.

    How do you get into a Tesla if the 12v is dead?
     
  2. woof

    woof Model X 75D Blue, 6 seats

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    A brick.



    Or apply 12VDC to the jumper posts in the frunk.
     
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  3. alseTrick

    alseTrick Active Member

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    Hope Tesla's 12v issues are over.
     
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  4. Stolz25

    Stolz25 Member

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    Do we know if the model 3 has a lead acid 12v?
     
  5. Zaphod

    Zaphod Galaxy President (former)

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    Quite sure it does. I know they talked about removing but that won't be until the Model Y or next gen S or X.

    S and X use a sealed lead acid AGM (absorbent gas mat) battery. Assume 3 would use the same.
     
  6. insaneoctane

    insaneoctane Member

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    If the battery is dead, how do you get into the frunk?
     
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  7. stopcrazypp

    stopcrazypp Well-Known Member

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    The older Model Ss have jump terminals under the nose cone. The refresh/newer ones have ways for frunk access without access to the interior of the car (see the Emergency Response Guides).
     
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  8. Zaphod

    Zaphod Galaxy President (former)

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    I assume the 3 will have the same access point as the S to make things consistent for first responders.
     
  9. T34ME

    T34ME Member

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    The exterior door handles are mechanical so no power needed. Now if the doors are locked you will need power. One attendee at the Release Party reported that there is a slot at the side window with a mechanical lock release that you can use with the key card to release. I don't know what you do about security, therefore I have my doubts about this report.

    I wonder if door locks work off the propulsion batteries rather than a stand along battery or maybe there is an auto override if the stand alone battery is dead. Maybe there is no stand alone battery and everything works off the battery pack?
     
  10. gregincal

    gregincal Active Member

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    I don't see any reason why it would be different than the Model S. You can always get out from inside.
     
  11. T34ME

    T34ME Member

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    Oh, I understand that, but the question is, how do you get INSIDE if the doors are locked and the 12v battery is dead. Any ideas, other than jumper cables to some exterior terminals?
     
  12. JeffK

    JeffK Well-Known Member

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    The battery would have to be super dead... there's a difference between when the car won't start vs totally flat and unable to unlock the doors.

    Get one of these
    https://www.amazon.com/dp/B015TKPT1A/ref=dp_cerb_1?th=1
     
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  13. chronopc

    chronopc Member

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    Any ideas on where the 12V is located? Is it under the frunk?
     
  14. JeffK

    JeffK Well-Known Member

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    Usually, yes. Unless things are dramatically different on the three which I doubt.
     
  15. T34ME

    T34ME Member

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    Is the frunk lid mechanical or electric? If the car is dead and locked, how do you get inside to release the frunk lid, whether mechanical or electric, to get to the battery terminals? Your pocket backup power supply requires access to the terminals and that you carry it on your person.

    I know that Tesla has provided a failsafe workaround, I just don't know what that is yet.
     
  16. chronopc

    chronopc Member

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    On the Model S you could only open up the frunk from the infotainment system, but there should be a manual way to open it as well.
     
  17. gregincal

    gregincal Active Member

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    I don't think anybody does, but presumably it's similar to the Model S one. The real answer as to what you do in this situation is "call Tesla".
     
  18. JeffK

    JeffK Well-Known Member

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    In the model S and X there's a mechanical release in the front for first responders. You cannot lock the frunk on a Tesla... keep that in mind.

    [​IMG]
     
  19. Zaphod

    Zaphod Galaxy President (former)

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    Believe that is only for the pre-refresh S cars. The refresh cars and X have it in the right corner (looking from the front) of the lower intake on the bumper. I assume it is the same for LH and RH drive cars. I know it was a big "controversy" and people were losing their mind over it.
     
  20. T34ME

    T34ME Member

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    Does Tesla still have the 'Rangers' program?
     

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